You can do that but it would serve no purpose. If you bought $100k bitcoins on a credit card, now the IRS has a paper trail. They'll want to know where that $10

You can do that but it would serve no purpose. If you bought $100k bitcoins on a credit card, now the IRS has a paper trail. They'll want to know where that $100k you paid the credit card bill came from. Even if you got the money in without being traced and spent them that's not laundering, it's tax evasion.